<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<!-- 更改系统默认弹窗 -->
<script type="text/javascript">
window.alert = function(str)
{
    var shield = document.createElement("DIV");
    shield.id = "shield";
    shield.style.position = "absolute";
    shield.style.left = "50%";
    shield.style.top = "50%";
    shield.style.width = "280px";
    shield.style.height = "150px";
    shield.style.marginLeft = "-140px";
    shield.style.marginTop = "-110px";
    shield.style.zIndex = "25";
    var alertFram = document.createElement("DIV");
    alertFram.id="alertFram";
    alertFram.style.position = "absolute";
    alertFram.style.width = "280px";
    alertFram.style.height = "150px";
    alertFram.style.left = "50%";
    alertFram.style.top = "50%";
    alertFram.style.marginLeft = "-140px";
    alertFram.style.marginTop = "-110px";
    alertFram.style.textAlign = "center";
    alertFram.style.lineHeight = "150px";
    alertFram.style.zIndex = "300";
    strHtml = "<ul style=\"list-style:none;margin:0px;padding:0px;width:100%\">\n";
    strHtml += " <li style=\"background:#626262;text-align:left;padding-left:20px;font-size:14px;font-weight:bold;height:25px;line-height:25px;border:1px solid #F9CADE;color:white\">[提示：]</li>\n";
    strHtml += " <li style=\"background:#787878;text-align:center;font-size:12px;height:95px;line-height:95px;border-left:1px solid #F9CADE;border-right:1px solid #F9CADE;color:#DCC722\">"+str+"</li>\n";
    strHtml += " <li style=\"background:#626262;text-align:center;font-weight:bold;height:30px;line-height:25px; border:1px solid #F9CADE;\"><input type=\"button\" value=\"返 回\" onclick=\"doOk()\" style=\"width:80px;height:20px;background:#626262;color:white;border:1px solid white;font-size:14px;line-height:20px;outline:none;margin-top: 4px\"/></li>\n";
    strHtml += "</ul>\n";
    alertFram.innerHTML = strHtml;
    document.body.appendChild(alertFram);
    document.body.appendChild(shield);
    this.doOk = function(){
        var para = GetRequest();

        //console.log(para);
        alertFram.style.display = "none";
        shield.style.display = "none";


        //window.location.href='index';
        window.location.href='downloadDetailInfo?filenameMd5='+para;
        //window.location.href='contactHandler?filenameMd5='+para;
        window.location.href='index';

    }
    alertFram.focus();
    document.body.onselectstart = function(){return false;};
}

    function GetRequest() {
       var url = location.search; //获取url中"?"符后的字串
       if (url.indexOf("?") != -1) {    //判断是否有参数
          var tmp=url.indexOf("?");
          var str = url.substr(tmp+1); //从第一个字符开始 因为第0个是?号 获取所有除问号的所有符串
          var strs = str.split("=");   //用等号进行分隔 （因为知道只有一个参数 所以直接用等号进分隔 如果有多个参数 要用&号分隔 再用等号进行分隔）
          return strs[1];          //直接弹出第一个参数 （如果有多个参数 还要进行循环的）
       }
    }
</script>
<script>
// 测试 alert
alert('内容下载后会自动删除');
</script>
</body>
</html>